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2014020221 = 2155993419
BaseRepresentation
bin111100000001011…
…1000001001111101
312012100201211100112
41320002320021331
513111042121341
6531503235405
7100623614033
oct17002701175
95170654315
102014020221
11943953224
124825a8b65
13261345a55
141516a8553
15bbc31aeb
hex780b827d

2014020221 has 4 divisors (see below), whose sum is σ = 2014135200. Its totient is φ = 2013905244.

The previous prime is 2014020199. The next prime is 2014020227. The reversal of 2014020221 is 1220204102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2014020221 - 210 = 2014019197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2014020196 and 2014020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2014020227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25151 + ... + 68268.

It is an arithmetic number, because the mean of its divisors is an integer number (503533800).

Almost surely, 22014020221 is an apocalyptic number.

It is an amenable number.

2014020221 is a deficient number, since it is larger than the sum of its proper divisors (114979).

2014020221 is an equidigital number, since it uses as much as digits as its factorization.

2014020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114978.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2014020221 is about 44877.8366345794. The cubic root of 2014020221 is about 1262.8582590894.

Adding to 2014020221 its reverse (1220204102), we get a palindrome (3234224323).

The spelling of 2014020221 in words is "two billion, fourteen million, twenty thousand, two hundred twenty-one".

Divisors: 1 21559 93419 2014020221